Fumihiro Okumura

77 papers and 1.3k indexed citations i.

About

Fumihiro Okumura is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Oncology. According to data from OpenAlex, Fumihiro Okumura has authored 77 papers receiving a total of 1.3k indexed citations (citations by other indexed papers that have themselves been cited), including 60 papers in Surgery, 34 papers in Pulmonary and Respiratory Medicine and 26 papers in Oncology. Recurrent topics in Fumihiro Okumura’s work include IgG4-Related and Inflammatory Diseases (22 papers), Gastrointestinal disorders and treatments (22 papers) and Gallbladder and Bile Duct Disorders (22 papers). Fumihiro Okumura is often cited by papers focused on IgG4-Related and Inflammatory Diseases (22 papers), Gastrointestinal disorders and treatments (22 papers) and Gallbladder and Bile Duct Disorders (22 papers). Fumihiro Okumura collaborates with scholars based in Japan, Greece and Russia. Fumihiro Okumura's co-authors include Itaru Naitoh, Takashi Joh, Kazuki Hayashi, Takahiro Nakazawa, Hirotaka Ohara, Katsuyuki Miyabe, Michihiro Yoshida, Hitoshi Sano, Tomoaki Ando and Hiroaki Yamashita and has published in prestigious journals such as Anesthesiology, Medicine and Gastrointestinal Endoscopy.

In The Last Decade

Co-authorship network of co-authors of Fumihiro Okumura i

Fields of papers citing papers by Fumihiro Okumura

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Fumihiro Okumura. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Fumihiro Okumura. The network helps show where Fumihiro Okumura may publish in the future.

Countries citing papers authored by Fumihiro Okumura

Since Specialization
Citations

This map shows the geographic impact of Fumihiro Okumura's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Fumihiro Okumura with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Fumihiro Okumura more than expected).

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar’s output or impact.

Explore authors with similar magnitude of impact

Rankless by CCL
2025